Home / 21,316.97-29,417.58-11,886.14

Finding the Fourth Proportional to 21,316.97, 29,417.58 and 11,886.14

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Solution

The fourth proportional to 21,316.97, 29,417.58 and 11,886.14 is: 16,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,316.97 : 29,417.58 = 11,886.14 : x
  2. Step 2: Convert to fraction form
    21,316.97/29,417.58 = 11,886.14/x
  3. Step 3: Cross multiply
    21,316.97x = 29,417.58 × 11,886.14
  4. Step 4: Simplify right side
    21,316.97x = 349,661,327.25
  5. Step 5: Solve for x
    x = 349,661,327.25/21,316.97
  6. Step 6: Final answer
    x = 16,402.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.